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Author |
Tsonev, I.; Biondo, O.; Bogaerts, A. |
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Title |
Simulation of a pulsed CO2plasma based on a six-temperature energy approach |
Type |
A1 Journal Article |
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Year  |
2025 |
Publication |
Plasma Sources Science and Technology |
Abbreviated Journal |
Plasma Sources Sci. Technol. |
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Volume |
34 |
Issue |
1 |
Pages |
015014 |
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Keywords |
A1 Journal Article; vibrational excitation, CO2 conversion, gas heating, non-thermal plasma, glow discharges, pulsed discharges; Plasma, laser ablation and surface modeling Antwerp (PLASMANT) ; |
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Abstract |
Recent time-resolved measurements of gas and vibrational temperatures in pulsed glow discharges have fostered the development and validation of detailed kinetic models to understand the underlying heating dynamics. The models published so far have been successful in identifying the fundamental processes underlying vibrational and gas heating in pure CO<sub>2</sub>discharges; however, this has come at the cost of including vibrational kinetics with thousands of reactions. This makes these models not compatible with self-consistent computational fluid dynamics (CFDs) codes, which are needed to develop new plasma reactors operating at high pressures or with complex flow patterns and capture the relevant dynamics in multi-dimension. In this work, we solve separate energy balance equations for the asymmetric and symmetric vibrational modes of CO<sub>2</sub>, as well as for the vibrational modes of CO and O<sub>2</sub>, the gas temperature, and the electron temperature, making it a six-temperature (6 T) plasma model. This eliminates the need to include a vast array of vibrational levels as separate species, drastically reducing the number of reactions in the model. The model is compared with experimental measurements conducted in a pulsed CO<sub>2</sub>glow discharge at 6.7 mbar. Excellent agreement is observed for the temporal evolution of the vibrational and gas temperatures, confirming that our approach is suitable for modeling systems under significant non-equilibrium conditions, paving the way for coupling detailed CO<sub>2</sub>/CO/O<sub>2</sub>/O kinetics with CFD codes. |
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Publication Date |
2025-01-01 |
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ISSN |
0963-0252 |
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Impact Factor |
3.8 |
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Open Access |
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Notes |
Fonds Wetenschappelijk Onderzoek, 1205424N ; HORIZON EUROPE European Research Council, 810182─SCOPE ERC Synergy project ; |
Approved |
Most recent IF: 3.8; 2025 IF: 3.302 |
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Call Number |
PLASMANT @ plasmant @ |
Serial |
9363 |
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